Saudi Arabia is also a totalitarian regime. It suppresses speech, executes citizens prejudicially and extrajudicially even outside their own borders, arrests and charges women's rights activists of treason, dozens of executions by beheading of non-violent drug offenders per year, human rights activists are arrested and imprisoned without trial, and so on.

Maybe we should just stop doing business with Saudi Arabia too, is that your point? No more Saudi Arabia oil for the U.S. or even all of the western world? In fact they're still treated as a U.S. ally.